Social innovation and light electric vehicle revolution on streets and ambient

Transcription

1 Social innovation and light electric vehicle revolution on streets and ambient 25 th Apr RESOLVE Final Event Chaussée de Wavre Bruxelles Riccardo Groppo

2 Contents The SilverStream project at a glance Human centric design approach System integration and validation tests on the demo vehicle Conclusions and. Page 2

3 The SilverStream project at a glance Page 3

4 Societal challenges: aging population and urbanization The SilverStream project is developed to address the challenges associated with new technologies for future urban mobility. The vehicle has been primarily designed for the ageing population in congested European cities with scarce parking space. A wide range of automotive technologies have been developed, realised and integrated in the LEV. The SilverStream vehicle represents a new and affordable concept in the L-category based on a Page 4 innovative human centric design approach. (*) "Population ageing in Europe: facts, implications and policies" - Directorate-General for Research and Innovation Socioeconomic sciences and humanities, EUR 26426

5 A multidisciplinary team The SilverStream project combines both ergonomic concepts conceived for elderly people and advanced automotive technologies for improved driveability and energy efficiency. SilverStream is focused on the development of a comprehensive set of technologies covering the whole vehicle, driven by a team of expert in the field of medical and cognitive science domain through a top/down approach, and which will be integrated into a demonstrator running in a realistic test environment. Page 5

6 Technical contents Safety: aluminum space frame body shell Ergonomics: e-seats, e-lift, HMI Page 6 Energy: Hybrid Energy Storage System e-drive Train: four independent active corners

7 Human centric design approach Page 7

8 Tight interaction between doctors and engineers Page 8

9 Comfort/Discomfort assessment of e-seat prototype 3 young subjects (pre-test) 15 elderly subjects 2 drop-out 8% 31% 61% 65 age < age < 75 age 75 Weight [kg] Height [cm] Mean Median Mean Median Male 77,9 80,0 176,3 Page Female 60,3 60,5 160,5 161

10 Biomechanical evaluation of e-seat prototype (1/2) Free EMG (x8) Passive Markers (x12) Stopwatch Page 10

11 Biomechanical evaluation of e-seat prototype (2/2) 3 young subjects (pre-test) Age 32 elderly subjects 2 drop outs N Weight [kg] Height [cm] mean sd median mean sd median Male 17 74,5 8,3 73,0 173,5 5,5 174,0 23% 30% 47% y.o y.o y.o Page 11 Female 13 61,5 10,6 60,0 159,8 4,6 161,0

12 Usability and user experience assessment of e-lift prototype Page 12

13 Usability and user experience assessment of HMI (1/2) 7 young subjects (pre-test) Page elderly subjects

14 Usability and user experience assessment of HMI (2/2) Page 14

15 System integration and validation tests on the demo vehicle Page 15

16 Chassis and e-drivetrain In-wheel motor and inverter (ELAPHE and IFX) Page 16 Modified front suspensions and steering (SURREY)

17 HESS (Hybrid energy storage system) Dual 12/48 V power network and microelectronic technologies for improved efficiency and system integration. Hybrid energy storage system built on the appropriate combination of advanced 25Wh Maxwell LiPO super-cap and 3kWh Li-ion Kokam cells in order to combine power and energy requirements while improving the overall efficiency and lifetime. 2.3kW onboard AC/DC converter to allow battery recharging through a common 230Vac plug. 100W Solar roof for onboard services energy integration. Page 17

18 Interior (1/2) Innovative HMI based multi sensorial inputs simplifying the operation of the auxiliary systems. Touch knob voice and gesture recognition. All-in-one central screen to show vehicle dashboard information, infotainment contents and air conditioning commands on a clear and simple display. Totally automated advanced Heating, Ventilation and Air Conditioning system based on an 1kW heat pump. Page 18 High Efficiency (Patented).

19 Interior (2/2) Lightweight seats designed for optimal posture including lumbar and neck support for comfortable and low-fatigue driving and easy egress and ingress through 90 degree swivel function. Electric rear e-lift and crane capable to carry goods from the floor to the back boot (up to 30kg). Page 19 Electric rear crane to pick-up baskets and bags (up to 35kg).

20 System integration on the vehicle The different subsystems have been integrated in the vehicle and the first validation phase, both on proving ground and dyno test bench, started. Page 20 Modified front suspension and in-wheel motor Rear in-wheel motor In-wheel motor e-lift (top), e-seat and HMI (bottom)

21 Experimental tests on the vehicle Experimental tests have been performed in order to verify the vehicle s performance according to the initial design specifications. Those tests were carried out both on a proving ground, nearby MTM facilities, and on the MTM rolling road test bench. In particular the sessions highlighted: the excellent manoeuvrability (e.g. low speed and low corner radius manoeuvres) of the LEV in comparison with a commercially available LEV featuring similar external dimensions; the good ride comfort behaviour of the LEV, which is not compromised by the increase of unsprang mass, associated with the adoption of the inwheel motors and inverters; the generally low values of energy consumption for all the operating conditions; the high reliability level of the prototype, thus allowing a smooth testing Page 21 process.

22 The SilverStream prototype during the slalom test at MTM facility Page 22

23 The SilverStream prototype during the step steer test at MTM facility Page 23 Fig. 1: The SilverStream prototype during the step steer test at MTM facility

24 The SilverStream prototype during the parallel parking test at MTM facility SilverStream vehicle Page 24 Commercially available L6 vehicle

25 The SilverStream prototype during the perpendicular parking test at MTM facility SilverStream vehicle Page 25 Commercially available L6 vehicle

26 The SilverStream prototype during the U-turn manoeuvre test at MTM facility SilverStream vehicle Page 26 Commercially available L6 vehicle

27 The SilverStream prototype during the rolling road dyno bench test at MTM facility The prototype has been tested in a rolling road dyno bench. A dyno with fourwheel drive has been chosen in order to run front and rear wheels together with the same speed profile. Page 27

28 Final living lab demonstration at FCSR The SilverStream vehicle demonstrator is ready for the final living lab demonstration at San Raffaele hospital in Milan Page 28

29 Conclusions and Page 29

30 Conclusions A comprehensive approach for the design and realization of a LEV tailored to the needs of aging population in urban mission has been proposed. The validation phase of the vehicle will be finalized in the next months The tight and effective interaction between different scientific domains (e.g. medical, engineering) brings a very relevant added value in the design of vehicles tailored to needs of European citizens This human centric approach will be further explored in new R&D projects Page 30

31 Thank you for your attention! Riccardo Groppo Page 34 Brussels,